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. 2021 May 27;14:1495–1504. doi: 10.2147/JPR.S311573

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© 2021 Choi et al.

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(A) Microscopic findings of betamethasone sodium phosphate (BSP) mixed with 0.75% ropivacaine HCl (ropivacaine) (× 100). (B) High density and extremely large particulates (>500 µm) in BSP mixed with ropivacaine (× 200). (C) BSP mixed with 0.75% levobupivacaine HCl (levobupivacaine) (× 100). (D) High density and large particulates (>100 µm) in BSP mixed with levobupivacaine (× 200). (E) BSP mixed with hyperbaric bupivacaine HCl (× 100). This shows dot-shaped particulates (<10 µm). (F) BSP mixed with 1% lidocaine HCl (× 100). No identifiable particulate is observed.